Omron CJ2 User Manual

3-13
3 Nomenclature and Functions
CJ2 CPU Unit Hardware User’s Manual
3-2 Memory Card
3
3-2-3 Installing and Removing
• Observe the following precautions while the Memory Card is being accessed. The Memory Card may
become unusable if these precautions are not followed.
• Never turn OFF the PLC while the CPU is accessing the Memory Card.
• Never remove the Memory Card while the CPU is accessing the Memory Card. Press the Memory
Card power supply switch and wait for the BUSY indicator to go OFF before removing the Memory
Card.
• Never insert the Memory Card facing the wrong way. If the Memory Card is inserted forcibly, it may
become unusable.
• To delete all the data on the Memory Card by formatting the Memory Card, insert the Memory Card in
the CPU Unit and perform the operation from the CX-Programmer.
1. Pull the top end of the Memory Card cover forward and remove from the Unit.
2. Insert the Memory Card with the label facing to the left. (Insert with the ∆ on the Memory Card
label and the ∆ on the CPU Unit facing each other.)
3-2-3 Installing and Removing
Before Using a Memory Card
Installing the Memory Card
Product label

Omron CJ2 Specifications

General

Model	CJ2
Manufacturer	Omron
Type	Programmable Logic Controller (PLC)
CPU Units	Multiple models available (e.g., CJ2M, CJ2H)
Number of I/O Points	Up to 2, 560 points
Communication Ports	Ethernet/IP, EtherCAT, USB, Serial
Expansion	Yes, via I/O Units and Special I/O Units
I/O Control Method	Cyclic Scan, Interrupt
Programming Language	Ladder diagram, structured text, function block diagram, sequential function chart, instruction list
Built-in I/O	Available on some models (e.g., CJ2M)
Ethernet Port	Yes, 1 port (depending on CPU Unit)
Serial Ports	RS-232C, RS-422/485 (configurable)
USB Port	Yes (for programming and monitoring)
Operating Temperature	0°C to 55°C
Storage Temperature	-25 to 70°C
Humidity	10 to 95% RH (non-condensing)
Vibration Resistance	10 to 57 Hz, Amplitude: 0.075 mm, 57 to 150 Hz, Acceleration: 1 G, X, Y, and Z directions, 80 min each
Power Supply Voltage	24 VDC or 100 to 240 VAC (depending on CPU Unit)